Telescopic sight mounting

ABSTRACT

A telescopic sight mounting formed of a mounting bar for fastening upon the side of a rifle, and a pair of ring-type scope holding clamps fastened upon the upper edge of the bar, with the forward clamp being pivotable about a vertical axis, and a rear clamp being arcuately movable in a horizontal plane for horizontally adjusting the angle of the scope relative to the rifle, and with the means for holding and moving the rear clamp being normally concealed by the clamp itself.

United States Patent [191 Rubin et a1.

[54] TELESCOPIC SIGHT MOUNTING [76] Inventors: Irving N. Rubin, 21781Straford, Oak Park, Mich. 48237; lvan Jimenez, 1780 Ouster Lane Drive,

Ypsilanti, Mich. 48197 [22] Filed: Oct. 8, 1971 [21] Appl. No.: 187,628

[52] US. Cl. ..248/205 R, 33/50 R [51] Int. Cl ..F4lg 1/38 [58] Field ofSearch ..248/205 R, 229, 226 R, 186; 33/50 R, 50 A [56] References CitedUNITED STATES PATENTS 2,436,948 3/1948 Williams ..33/50 R 2,854,74810/1958 Williams 2,072,877 3/1937 Green 3,463,430 8/1969 Rubin v..248/205 R Y [111 3,724,800 51 Apr. 3, 1973 2,456,214 12/1948 Roe..33/50 A X 2,951,292 9/1960 Buehler ..33/50 R 3,226,868 1/1966 Mahoney.....33/50 R X 3,187,435 6/1965 Miller ..33/50 R Primary Examiner-J.Franklin Foss Attorney-Cullen, Settle, Sloman & Cantor [57] ABSTRACT Atelescopic sight mounting formed of a mounting bar for fastening uponthe side of a rifle, and a pair of ring-type scope holding clampsfastened upon the upper edge of the bar, with the forward clamp beingpivotable about a vertical axis, and a rear clamp being arcuatelymovable in a horizontal plane for horizontally adjusting the angle ofthe scope relative to the rifle, and with the means for holding andmoving the rear clamp being normally concealed by the clamp itself.

5 Claims, 8 Drawing Figures PATENTEDAPRB I975 724,

INVENTORS IRVING N. RUBIN BY IVAN JIMINEZ.

CULLEN, SETTLE, SLOMAN 8 CAN'IDR ATT'YS.

1 TELESCOPIC SIGHT MOUNTING BACKGROUND OF INVENTION The invention hereinrelates to a telescopic sight mounting which is an improvement of thetypes shown, for example, in our prior US. Pat. No. 3,463,430 grantedAug. 26, 1969 and in the prior patent to Williams No. 2,854,748 grantedOct. 7, I958.

The device disclosed in our own earlier patent above, includes a barfastened across the top of the receiver portion of a bolt action rifle,with ring-type clamps secured to the bar for holding a scope above andin parallel alignment with the rifle barrel. For certain types ofrifles, as for example the so called Winchester Model No. 94," it is notpractical to arrange the mounting bar above the barrel or receiverbecause of the nature of the rifle construction. Here, it is desirableto mount the bar upon the side of the receiver of the rifle.

Thus, the Williams patent mentioned above shows a mounting bar, uponwhich the clamps are secured, fastened to the side receiver cover plateof the rifle. This prior construction, however, has the disadvantage ofrequiring the gunsmith to drill and tap accurately formed holes in theside receiver plate, requiring considerable labor and expense.

Additionally, with these types of rifle telescopic sight mounts, it isdesirable to provide some means for adjusting the mounted telescopicsight in a horizontal plane, parallel to the bore of the rifle, foraccurate alignment between the scope axis and the barrel axis. This typeof alignment is required only rarely, but is desirable to have availablewhen needed.

In the foregoing types of sight mounts, as .for example, in the aboveWilliams patent disclosure, a means is provided for moving the scoperelative to the rifle. However, it has been conventional to leave suchandthe scope only when desired, eliminating inadvertent adjustments.

These and other objects and advantages of this invention will becomeapparent upon reading the following description, of which the attacheddrawings form a part.

mounting adjustment means exposed with the result SUMMARY OF INVENTIONThe invention herein contemplates a telescopic sight mount having a bararranged for side mounting upon the conventional receiver side coverplate, utilizing the existing screw holes in the plate, to eliminate theneed for drilling additional accurate holes, and with a forwardring-type clamp vertically pivotally secured to the forward end of thebar by meansof a vertical screw and the rear ring-type clamp secured tothe rear of the bar by means of a screw extending through an offset holein a rotatable bushing, so that rotation of the bushing arcuately movesthe scope in a horizontal plane, and wherein the bushing and screw are,concealed by the base of the rear clamp.

The construction herein makes it possible for the average rifle owner toinstall the scope mount by himself, without the necessity of using theservices of a skilled gunsmith and makes it possible for him to adjustthe horizontal alignment between the rifle'bore axis DESCRIPTION OFDRAWINGS FIG. 1 is a perspective view of the telescopic sight mountingherein securing a conventional scope to a' rifle.

FIG. 2 is a perspective view showing a portion of the rifle and thescope mounting parts disassembled.

FIG. 3 is a perspective view of the side mounting bar.

FIG. 4 shows a ring-type clamp, with its two parts disassembled.

FIG. 5 is an end view of the ring-type clamp.

FIG. 6 is a perspective, cross sectional view of the adjustment bushing,and

FIG. 7 is an enlarged top or plan view of the bushing within the sidemounting bar.

FIG. 8 is a cross sectional view taken in the direction of arrows 8-8 ofFIG. 7.

DETAILED DESCRIPTION FIG. 1 illustrates a rifle 10 such as of the socalled Winchester 94" type model which is lever operated and has a sidereceiver cover. Secured to the rifle is a conventional telescopic sight11 by means of the mounting generally designated as 12.

The mounting includes an elongated, narrow bar 14,

arranged on edge, and having a forward screw mounting hole 15 and rearscrew mounting holes 16 for horizontal alignment with the correspondingforward screw hole 17 and rear screw holes 18 formed through the sidereceiver cover plate 19 of the rifle. In this type of rifle, the plateis secured to the side of the rifle by suitable screws extending throughholes 17 and 18.

I-Iere, those screws are removed and the same holes are used forfastening both the receiver plate and the bar to the side of the rifleby means of suitable matching screws 20 and 21.

The forward, rifle engaging face of the bar may be suitably relieved at22 to fit around the contours of the side or receiver area of the rifle.

The mounting also includes a forward .and a rear ring-shaped clamp 24and 25, respectively, each identical in construction.

As illustrated in FIGS. 4 and 5, the clamps comprise two parts, namely,a base part 26 having a half ring portion 27 and a lower base portion28, and a cover part 29 having a half ring portion 30. The two parts areengaged together as shown in FIG. 5, and secured by means of screw holes31 in the upper and lower areas of the cover part aligned with screwholes 32 in the upper and lower areas of the base partthrough whichsmall screws 33 are inserted.

The base forming portions 28 are arranged to rest upon the upper edgesurface of the side mounting bar 14 and are provided with verticallyaxised screw holes 35 (see FIG. 5).

The forward clamp is secured to the bar 14 by means of a vertical longscrew 36 extending through a vertical hole 37 in the forward end of thebar, with the screw engaging into the hole 35 in the clamp. Thus, theforward clamp may be pivoted about the vertical axis of the screw 36.

The rear clamp is mounted for movement in an arcuate, horizontaldirection. For this purpose, a hole 39 is drilled through the rearportion of the bar (see FIG. 8), with the hole having an upper and alower countersink portion 40 and 41, respectively. Centered within thehole is a circular bushing 42 whose head 43 snuggly and rotatively fitswithin the upper countersink 41, with its shank 44 fitting within thehole 39. A screw receiving hole 45 is drilled through the bushing, butthis hole is offset relative to the central axis of the bushing.

A screw 46 extends upwardly through the offset hole 45, with the head 47of the screw fitted within the lower countersink 41, which is of aconsiderably greater diameter than the screw head 47.

Thus, rotation of the bushing 42 moves the screw hole 45, with the screw46, in an arcuate horizontal path so that the screw may be eitheraligned with the center line of the bar 14 or moved to one side or theother of that centerline, as the case may be.

To more positively lock the bushing against inadvertent movement,arcuate notches 48 are formed in its head 43 and the head 49 of a setscrew 50 engages one of these notches. Thus, the bushing may be rotatedinto a number of positions, determined by the number of arcuate notchesformed in it. The movement of the bushing moves the screw 46 asindicated by the double arrow 51 in FIG. 3.

The screw 46 is engaged into the threaded hole 35 in the rear clamp andby tightening the screw, the clamp is fixed in position. This covers thebushing and the set screw so that neither of these may be tampered withwhile the clamp is in place. For further adjustment, the clamp isremoved and the bushing adjusted and then the clamp is replaced again.Since this type of adjustment is not necessary often, the fact that thebushing adjustment is not readily accessible is not a difficult problem.

The telescopic sight is arranged through the ring clamps as shown inFIG. 1, by removing the cover parts 29, inserting the sight into thebase parts 26 and then replacing the cover parts.

This construction completely eliminates the necessity of drillingaccurately located screw mounting holes, which was required in the past,for attaching scope mounts to the rifle and, moreover, eliminatesinadvertent loosening or shifting or misalignment of the scope relativeto the rifle barrel.

Having fully described an operative embodiment of this invention, we nowclaim:

1. A telescopic sight mounting comprising:

a horizontally elongated, narrow, thin bar arranged on one long edge andadapted for fastening in face to face contact with the side face of arifle in its receiver area;

a pair of ring-shaped clamps, each having a base portion arranged uponthe upper long edge of the bar, with one clamp near the forward,relative to the rifle, end of the base and the other being near the rearend of the bar, with the two clamps being axially aligned for clamping atelescopic sight extending therethrough in substantially parallelalignment with the bar length and thus the rifle barrel;

each base portion having a vertical, downwardly opening, threaded screwreceiving opening formed therein;

and a vertical opening extending through the bar near each end thereofand aligned with said base openings;

and a vertically arranged threaded screw extending upwards through eachof the bar openings and being threadedly engaged into the respectivebase portion openings for thereby screw fastening said clamps directlyupon the upper long edge of said bar;

and one of said bar openings being of a considerably greater diameterthan its screw and being circular in cross section, and a circularbushing rotatably fitted within said one opening, and beingsubstantially covered by its respective clamp base portion, with thebushing having a vertical hole extending therethrough and of a diameterto closely receive its screw, with the hole being parallel to but offsetrelative to the axis of said one opening, so that rotating said bushingwithin its opening offsets the screw extending through the bushingrelative to the center line of said one opening,

wherein the vertical axis of the screw extending through the bushing,and also the clamp threadedly engaged therewith may be adjusted in ahorizontal arcuate path, by rotating the bushing into varying positionswhen its clamp is disconnected from its screw to uncover the bushing,and re-engagement of its clamp and its screw thereby locks its clamp tothe bar in such prearranged position and conceals the bushing.

2. A construction as defined in claim 1, and said screws having headscounter-sunk into the lower edge of the bar, wherein the entire meansfor fastening the clamps to the bar are concealed by the clamp bases onthe upper edge of the bar and the counter-sinking of the screw heads onthe lower edge of the bar.

3. A construction as defined in claim 1, and including a number ofvertically arranged notches formed in the upper edge of said bushing,and a small set screw threadably fastened into the upper edge of the barand partially engaging one of said notches for locking the bushingagainst rotation, the set screw being beneath and thus concealed by thebase portion of its respective clamp.

4. A construction as defined in claim 1, and including means forfastening the bar to the rifle, comprising screw holes horizontallyextending through the bar and arranged in horizontal alignment withpre-existing screw holes used for screw fastening the rifle sidereceiver cover plate to the rifle, and screws of a length for extendingthrough said aligned screw holes for consequently fastening both the barand cover together to the rifle.

5. In a rifle having a side receiver cover plate formed with a number ofhorizontally axised screw receiving holes through which screws areinserted for fastening the plate to its adjacent rifle structure, and atelescopic sight mounting comprising a horizontally elongated, narrow,thin bar arranged on one long edge and adapted for fastening in face toface contact with the side receiver cover plate of a rifle; and a pairof ringshaped clamps each having a base arranged upon the number of thereceiver plate screw holes, and includlng screws of sufficient lengthfor extending through said aligned screw holes in the bar and plate,replacing the original screws used for originally fastening the plate tothe rifle structure, for consequently fastening both the bar and thecover plate together as a unit to the adjacent rifle structure.

1. A telescopic sight mounting comprising: a horizontally elongated,narrow, thin bar arranged on one long edge and adapted for fastening inface to face contact with the side face of a rifle in its receiver area;a pair of ring-shaped clamps, each having a base portion arranged uponthe upper long edge of the bar, with one clamp near the forward,relative to the rifle, end of the base and the other being near the rearend of the bar, with the two clamps being axially aligned for clamping atelescopic sight extending therethrough in substantially parallelalignment with the bar length and thus the rifle barrel; each baseportion having a vertical, downwardly opening, threaded screw receivingopening formed therein; and a vertical opening extending through the barnear each end thereof and aligned with said base openings; and avertically arranged threaded screw extending upwards through each of thebar openings and being threadedly engaged into the respective baseportion openings for thereby screw fastening said clamps directly uponthe upper long edge of said bar; and one of said bar openings being of aconsiderably greater diameter than its screw and being circular in crosssection, and a circular bushing rotatably fitted within said oneopening, and being substantially covered by its respective clamp baseportion, with the bushing having a vertical hole extending therethroughand of a diameter to closely receive its screw, with the hole beingparallel to but offset relative to the axis of said one opening, so thatrotating said bushing within its opening offsets the screw extendingthrough the bushing relative to the center line of said one opening,wherein the vertical axis of the screw extending through the bushing,and also the clamp threadedly engaged therewith may be adjusted in ahorizontal arcuate path, by rotating the bushing into varying positionswhen its clamp is disconnected from its screw to uncover the busHing,and re-engagement of its clamp and its screw thereby locks its clamp tothe bar in such prearranged position and conceals the bushing.
 2. Aconstruction as defined in claim 1, and said screws having headscounter-sunk into the lower edge of the bar, wherein the entire meansfor fastening the clamps to the bar are concealed by the clamp bases onthe upper edge of the bar and the counter-sinking of the screw heads onthe lower edge of the bar.
 3. A construction as defined in claim 1, andincluding a number of vertically arranged notches formed in the upperedge of said bushing, and a small set screw threadably fastened into theupper edge of the bar and partially engaging one of said notches forlocking the bushing against rotation, the set screw being beneath andthus concealed by the base portion of its respective clamp.
 4. Aconstruction as defined in claim 1, and including means for fasteningthe bar to the rifle, comprising screw holes horizontally extendingthrough the bar and arranged in horizontal alignment with pre-existingscrew holes used for screw fastening the rifle side receiver cover plateto the rifle, and screws of a length for extending through said alignedscrew holes for consequently fastening both the bar and cover togetherto the rifle.
 5. In a rifle having a side receiver cover plate formedwith a number of horizontally axised screw receiving holes through whichscrews are inserted for fastening the plate to its adjacent riflestructure, and a telescopic sight mounting comprising a horizontallyelongated, narrow, thin bar arranged on one long edge and adapted forfastening in face to face contact with the side receiver cover plate ofa rifle; and a pair of ring-shaped clamps each having a base arrangedupon the upper long edge of the bar, with one clamp near the forward,relative to the rifle end of the bar and the other being near the rearend of the bar, with the two clamps being axially aligned for clamping atelescopic sight extending therethrough, in substantially parallelalignment with the bar length and thus the rifle barrel; the improvementcomprising: means for fastening the bar to the rifle, comprising screwholes horizontally extending through the bar and pre-arranged inhorizontal alignment with a number of the receiver plate screw holes,and including screws of sufficient length for extending through saidaligned screw holes in the bar and plate, replacing the original screwsused for originally fastening the plate to the rifle structure, forconsequently fastening both the bar and the cover plate together as aunit to the adjacent rifle structure.